68935128023 has 2 divisors, whose sum is σ = 68935128024. Its totient is φ = 68935128022.

The previous prime is 68935128019. The next prime is 68935128113. The reversal of 68935128023 is 32082153986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68935128023 - 2² = 68935128019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68935124023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34467564011 + 34467564012.

It is an arithmetic number, because the mean of its divisors is an integer number (34467564012).

Almost surely, 2^68935128023 is an apocalyptic number.

68935128023 is a deficient number, since it is larger than the sum of its proper divisors (1).

68935128023 is an equidigital number, since it uses as much as digits as its factorization.

68935128023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 68935128023 in words is "sixty-eight billion, nine hundred thirty-five million, one hundred twenty-eight thousand, twenty-three".